It's hard to do what "Up" managed in the first 10 minutes in an entire movie, let alone in a single fragment. Unfortunately getting the big guns that early meant the personality was lacking in the middle hour of the movie only to return in a surprisingly funny climax. This is a different adventures from others of Pixar's endeavors and it's one of the most heartfelt, but those parts just fog out the dull rest.
While it starts off with a daring "sad ending", it can only compensate for the lack of dramatic payoff with boatloads of cute, i.e. a chubby scout and a talking dog. The main adventure is simply pedestrian, and contradictory in aesthetics results — a very advanced physics engine next to a stale landscape.
This movie is one of the first disney movies that I have seen that the protagonist isnt some sort of princess but yet an older man. The plot is more about the man finding a new purpose and a new sense of adventure. I enjoyed the movies concept that being adventurous has no age and that everyone should embrace there inner childike wonder.
Brace yourself for an emotional roller coaster ranging from "Awwwww that's the cutest thing EVER" to "That was so sad that I am afraid I shall never feel joy again". However, I would gladly stand in line for three days to ride this roller coaster again, and so would you. Excellent.